Contribution of specific cognitive dysfunction to people with schizotypal personality

Individual differences in the executive control of attention, memory, and thought, and their associations with schizotypy.

“…The findings are incoherent. Matheson and Langdon (2008) found that some schizotypy factors, but not others, correlated modestly with letter-number span, but most studies have found no differences between higher and lower schizotypy subjects in letter-number, digit, or other span tasks (Avons, Nunn, Chan, & Armstrong, 2003; Chan, Wang, et al, 2011; Chun, Minor, & Cohen, 2013; Daly, Afroz, & Walder, 2012; Iati, 2012; Lenzenweger & Gold, 2000; M. Peters, Smeets, Giesbrecht, Jelici, & Merckelbach, 2007; Tervo, 2004; Unsworth et al, 2009; Wang et al, 2008).…”

“…Peters, Smeets, Giesbrecht, Jelici, & Merckelbach, 2007; Tervo, 2004; Unsworth et al, 2009; Wang et al, 2008). Regarding n-back and delayed-match-to-sample studies, they are each about evenly split between those finding null schizotypy effects (Chan, Wang et al, 2011; Smyrnis et al, 2007; Park & McTigue, 1997; N. Smith & Lenzenweger, 2013; Wang et al, 2008) and those that show limited and inconsistent schizotypy effects, with schizotypy-related differences arising in some dependent measures but not others, or for some schizotypy dimensions but not others (Gooding & Tallent, 2003; Kerns & Becker, 2008; Koychev, El-Deredy, Haenschel, & Deakin, 2010; Koychev et al, 2012; Park, Holzman & Lenzenweger, 1995; Schmidt-Hansen & Honey, 2009; Tallent & Gooding, 1999).…”

Inferring about individual drug and schizotypy effects on cognitive functioning in polydrug using mephedrone users before and after clubbing

“…For instance, in a study by Rawlings and Goldberg (), performance in a continuous performance task was affected by higher cognitive disorganisation but not as consistently by other schizotypy dimensions. Similar conclusions on the role of symptom dimensions have also been drawn from studies in other schizotypal samples (Szöke et al ., ; Chan et al ., ; Cappe et al ., ) and in schizophrenia patients (Lucas et al ., ; Kebir et al ., ). With regard to schizotypy, positive symptoms have even been associated with performance benefits such as in creativity tasks (Mohr et al ., ; Batey and Furnham, ; Nelson and Rawlings, ).…”

Verbal self-monitoring in individuals with schizotypal personality traits: An exploratory ERP study

“…Furthermore, high-risk individuals with schizotypal personality traits exhibit similar albeit less pronounced neurocognitive impairment as schizophrenia patients (Chan et al, 2011(Chan et al, , 2010. Similar to patients with schizophrenia, individuals with schizotypal personality traits also exhibit odd speech patterns.…”